Controllability, basic equations of motion, Hydrodynamic forces during amaneuver, Force derivatives, Model tests, Linearised equations of motion, Types of stability, Rudder design, Analaysis of course keeping, various maneuvers, Freerunning model tests, Introduction to nonlinear equations. ROV equations, Stability of underwater vehicles, Autopilot design, Design of controls. Automatic control of ships, Roll stabilization, Dynamic positioning, identification of ship dynamics, Control of high-speed crafts.